[SPARK-53652][SQL]Codegen for MergeRowExec #52399
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@aokolnychyi @rdblue @szehon-ho @cloud-fan @huaxingao @sunchao Can you help review this? |
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What changes were proposed in this pull request?
Generate code for MergeRowsExec operator
Why are the changes needed?
This would help operator fusing and improve performance of
MERGEoperationsDoes this PR introduce any user-facing change?
No
How was this patch tested?
All existing MergeRowsExec tests pass with codegen
Was this patch authored or co-authored using generative AI tooling?
No